Origin of dwarf Betel Nut

[brodklop]

Hi all, what is the general theory for the occurrence of dwarfism in Areca catechu.

Can dwarfs come from ordinary seed from normal trees

[PalmatierMeg]

If dwarfism is a recessive trait, or traits, as more than one gene may be responsible. Betel nut dwarfism occurs along a spectrum from slight to extreme. Extreme dwarfism is very rare. Some normal betel nuts may carry a recessive dwarfism gene but do not express it until and unless it is fertilized by another betel nut that has the same gene. I don't know if anyone has done genetic research on the betel nuts to determine how dwarfism expresses itself in palms.

[Palmarum]

A mutation that has been bred out over time.

Growing zillions of them for the Betel Nut trade resulted in the appearance of plants showing minor dwarf characteristics. Those cultivated plants were then bred with other specimens showing similar dwarfism, and on and on, with multiple generations. Eventually you arrive at a specimen with the compact, feather-duster appearance, robust crownshaft and stout trunk we all adore.

5 hours ago, brodklop said:

... Can dwarfs come from ordinary seed from normal trees

Yes, but it would bear slight compactness and not the severe dwarfism we see in the noted form. Think of getting a plant with scant variegation. It has the gene but its not 'brought out' enough as a fully variegated plant. A specimen with just slight compactness could be quite attractive.

Ryan

[realarch]

Thanks for the interesting comments, I’ve observed the variability of dwarfism in A. catechu, but really didn’t give it much thought.

I thought I was seeing things when I saw your post Brod . Welcome back.

Tim

[brodklop]

Thanks guys for your comments, that was really helpful